Handling of deleting chained credentials (dangling)

[iFergal]

Version

0.2.0-dev6

Environment

No response

Expected behavior

I'm not really sure, maybe a discussion point. Do we delete all "linked" credentials (below that point in the graph), or provide some feedback when fetching that a credential in the chain has been deleted?

Actual behavior

Given (QVI, LE) credentials. If you delete the QVI credential, the LE credential is left dangling.

The result is you cannot even fetch all credentials, since while iterating it will try to clone the QVI credential and throw an error.

Steps to reproduce

1. Issue QVI credential
2. Issue chained LE credential
3. Delete QVI credential
4. Clone/fetch LE credential

[2byrds]

From our community dev discussion we touched on filtering and deletion implications. Certainly the error needs to be addressed in KERIA, but the UI and usability have wide reaching implications